Question about GMC Yukon
I was driving my 97 yukom with a 5.7 and it just quit. dead peddle and coasted to astop. truck turned over but would not fire. check all roadside things i could, ie Fuses,ecm conectors, battery and alt wires even tried jumping as battery started fading. nothing!!! Towing home now, getting code scanner. I had a distributor gear fail on another truck a few years ago so that is my first thoughts is the cam gear stripped but i know that is a pain and hope thats not it. I dont want to jsut do exploratory surgery I would like to pin point a lil better before just throwing parts at it. thanks
Check the crank shaft position sensor.
Posted on Feb 09, 2014
Testimonial: "Just added ether and it fired, didnt stay running but fired so in going to check the filter. No codes came up on reader which is wierd should have atleast been a lean cylinder code i would think ....."
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Posted on Jan 02, 2017
Well dan after 13 yrs at gm I have found a couple of these. one really got me. First I know it sounds funny but you need to pull the carpet back on the dr. and pass. side and check the ground splices as they are connected to every thing in the car from front to back. they are a black connector taped into the harness and connect all the grounds with a steel buss bar. I always cut all the wires and soldered them together and re-tape em up. this problem would sometimes come with the engine dying when trying to roll the power windows down, or intermittent window operation. Second I had one car i really lost my **** on... it would stall on the cust. on HIS dirt road for him at times. I tried a couple of sensors and a ecm as each would look bad depending on the frame the scan tool would freeze on. The only thing that fixed the car was removing all the grounds on the engine and grinding them clean, replacing all the ground ends and reassembling. That prayer i said when the guy picked might have also helped but the car never stalled again and the cust returned for his next two car purchases. this is one heck of a problem you have here-sorry. I have had to wire in lights to the grounds and powers for the injection while driving before also. remember the pink and blk. wires for the injectors is hot with the key on.
Posted on Aug 31, 2008
The reason car batteries do that is because the battery only runs your accessories and starts the car. The alternator runs the vehicle and charges the battery once it is started. If the battery is failing the charge provided by the alternator runs your accessories and the leftovercharge is displaced into the dead battery.
Posted on Oct 03, 2009
Testimonial: " Thanx for solving one of the "great mysteries" of the auto (to me), "Smokey"! (Do either of you make road calls?) :-)"
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